Improvement in cooking-stoves



2 Sheets-Sheet 1 'J. B LONG. G06king-St0ve.

Patent ed May 27, 18 79" rL PETERS. FIIOTUUTHOGRAPHER. WASH J. B LONGCooking-Stove.

Pater \ted May 27,1879.

N PETERS, PHOTOLI HHHHHHHHHHHHHHH INGTDN. D. (I.

2 SheetsSheet 2.

UNITED STATES: PATENT OFFICE.

JAMES B. LONG, OF ROCHESTER, NEW YORK.

IMPROVEMENT lN COOKlNG-STOVES.

Specification forming part of Letters Patent No. 215,827, dated May 27,1879 application filed June 22, 1878. I

To all 'whomit may concern: Be it known that I, JAMES B. LONG, of thecity of Rochester, county of Monroe and State of New York, have inventeda certain new and useful Improvement in Stoves and Ranges; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, in which- .Figure 1 is a vertical section of a cookingrange inline as wof Fig. 2. Fig. 2 is ahorizontal section in liney y of Fig. 1.Fig. 3 is a similar section in line 2 z of Fig. 1. Figs. 4,

5, and 6 are detail views.

My improvement relates to cooking stoves and ranges having revertiblefines for passing the heat around the oven.

The invention consists in the combination and arrangement of certainparts by which the heat may be carried either above or below the oven atpleasure, as hereinafter more fully described.

The drawings show a cooking range, in which A is the fire-chamber B, theash pit, and G the oven. The oven is surrounded by flues a b b 0 c d d,as shown, so that the heat may make a circuit around the same, and befinally discharged from the top flue through the smoke -pipe f.Ordinarily, in stoves of I this kind, the heat first passes over the topof the oven, thence down behind the oven, thence under it, and finallyto the top, where it escapes, in which case the bottom of the ovenfrequently lacks heat.

I construct the flues so that the heat may be passed in eitherdirection, as follows: 9 is a division-plate between the fire andash-chambers and the flue a. The heat carried over the top of this plateis carried above or below the oven accordingly as the valve h is turnedup or down over the top of the said flue. This valve is hung on the topfront edge of the oven, which has a depressed seat formed for it, and acorresponding depressed seat, 2', is formed in the top of plate g. Thevalve extends across the whole width of the stove, and when turned up,as shown in Fig. 1, the heat is all forced to go down through the flue aand under the bottom of the oven. When turned down, as indicated by thedotted lines, it covers the top of flue a, and the turns to the right,as shown at is, and forms a division between the flue a and that portionof flue d over which is situated the smokepipe, so that the heat hasfirst to enter the otherportion of flue d both in passing over and underthe'oven before it can enter d. In

that portion of partition 70 over the top of the oven are one or moreports, I 1, opening from d into (1, and these ports are covered byfalling valves m m, operated by rods 01 n, which extend to the outsideof the stove. When these valves are opened the heat from d can pass into(1, as shown in Fig. 2.

k is a vertical partition, being a continuation of k, and serving todivide the vertical back flue, c c, and k is a horizontal partition, acontinuation of k, which divides the bottom flue, b b. This partitionends abruptly at the front of the oven, as shown in Figs. 1 and 3,leaving both compartments of the bottom flue, b b, communicatingdirectly with the bottom of flue a.

The operation is as follows: 'VVhen it is de sired to throw the heatedair directly under the oven, the valve h is opened or thrown up, asshown in Fig. 1. The hot air then passes down through flue a, thencethrough lines I) b c c, and up into flue d d in full volume. The amountof air that enters d is carried through the ports 1 land discharged incommon with that which enters d. In this manner the air, when hottest,is passed under the oven, and when coolest over it.

The action of the currents is indicated by the whole arrows. To reversethe currents and carry the hottest air over the oven and the coolestunder it, the valve h is closed, cow ering the flue a, and the valves mm are also closed between the flues d d. The hot, air

then passes over the oven, being thrown into the passage d by thepartition k thence it passes down through the half-flue c,- thence alongthe corresponding bottom flue, I); then passing the end of thepartition-plate 70 it passes back through I) and a into (1, and finallyescapes by the exit-pipe, its passage being thus indirect, as indicatedby the half arrows.

I am aware that various forms of downward and indirect drafts are usedin stoves.

The novelty in my invention consists in the combination of the variousparts, consisting of the division'plate g, valve h, the partitions 7c 7ck 70 and valves m m, by means of which the draft may be reversed andproperly guided, as before described.

The upper front portion of the oven in the flue a is provided with aseries of outwardlyprojeotin g flanges, p 19, arranged, preferably, insquares, and the spaces between are filled with plaster or othernon-conducting material, Fig. 6. This prevents the upper front portionof the oven from becoming overheated, while the lower portion next thebottom obtains the full benefit of the heat.

Having thus described my invention, I claim 1. In a cooking stove orrange, the combination, with the oven 0, of the division-plate g,.valveh, partitions 7c k 70 7: and thevalves m m, the valve h being pivoted tothe upper front corner of the oven, and arranged to alternately open andclose the flues a d as it is thrown from one position to the other, andthe valves m m opening from flue 01 into flue d, the whole arranged asdescribed, so that by shifting said valves the draft will be forced topass either under and around the oven or over and beneath it, as shownand described, and for the purpose specified.

2. In a cooking stove or range, the combination, with the oven 0, havingthe flues a b I) 0 c d d surrounding it, of the partitions 70 k 70 kstarting on one side of the stove at its junction with the oven,extending thence centrally through said flues around the oven, dividingthem into two passages, and ending abruptly at the front end at thebottom of the oven, said partitions being provided with the valves m mon top of the oven opening from one passage into the other of the topflue, as shown and described, and for the purpose specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

JAMES B. LONG.

Witnesses:

R. F. ()seoon, JACOB SPAI-IN.

